package demo3;

public class Keyboard implements IUSB {

    @Override
    public void openDevice() {
        System.out.println("打开键盘...");
    }
    public void input(){
        System.out.println("键盘输入...");
    }
    @Override
    public void closeDevice() {
        System.out.println("关闭键盘...");
    }

    @Override
    public void test() {
        System.out.println("我是Keyboard, 重写的test方法");
    }
}
